期刊
METABOLISM-CLINICAL AND EXPERIMENTAL
卷 64, 期 2, 页码 274-282出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.metabol.2014.10.005
关键词
Medium-chain triglycerides; Fish oil; Parenteral nutrition; Inflammation
资金
- Eunice Kennedy Shriver National Institute of Child Health and Human Development of the National Institutes of Health [F532 HD 071715-02]
- National Research Service Award Institutional Training Grant of the National Institutes of Health [2T32DK007754-14, 5 T32 HD007466-16, 5 T32 HD007466-17]
- Joshua Ryan Rappaport Research Fellowship
- Boston Children's Hospital Department of Surgery
- Vascular Biology Program
Objective. Parenteral nutrition associated liver disease (PNALD) is a deadly complication of long term parenteral nutrition (PN) use in infants. Fish oil-based lipid emulsion has been shown in recent years to effectively treat PNALD. Alternative fat sources free of essential fatty acids have recently been investigated for health benefits related to decreased inflammatory response. We hypothesized that the addition of medium-chain triglycerides (MCT) to a purified fish oil-based diet would decrease the response to inflammatory challenge in mice, while allowing for sufficient growth and development. Materials/methods. Six groups of ten adult male C57/Bl6 mice were pair-fed different dietary treatments for a period of twelve weeks, varying only in fat source (percent calories by weight): 10.84% soybean oil (SOY), 10% coconut oil (HCO), 10% medium-chain triglycerides (MCI), 3% purified fish oil (PFO), 3% purified fish oil with 3% medium-chain triglycerides (50:50 MCT:PFO) and 3% purified fish oil with 7.59% medium-chain triglycerides (70:30 MCT:PFO). An endotoxin challenge was administered to half of the animals in each group at the completion of dietary treatment. Results. All groups demonstrated normal growth throughout the study period. Groups fed MCT and HCO diets demonstrated biochemical essential fatty acid deficiency and decreased IL-6 and TNF-alpha response to endotoxin challenge. Groups containing PFO had increased inflammatory response to endotoxin challenge, and the addition of MCT to PFO mitigated this inflammatory response. Conclusion. These results suggest that the addition of MCT to PFO formulations may decrease the host response to inflammatory challenge, which may pose potential for optimized PN formulations. Inclusion of MCT in lipid emulsions given with PN formulations may be of use in therapeutic interventions for disease states resulting from chronic inflammation. (C) 2015 Elsevier Inc. All rights reserved.
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